diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/AllergyRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/AllergyRepository.java
index 94a4bf58a8ff87f2765a36abf4c3510971ef566d..539e6349851f9dee0c3aee195e8e11f2e1ea6b59 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/AllergyRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/AllergyRepository.java
@@ -12,7 +12,6 @@ import java.util.Optional;
  * 
  * @author Stian Lyng and birk
  * @version 1.2
- * @since 21.04.2023
  */
 public interface AllergyRepository extends JpaRepository<Allergy, String> {
     /**
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/RecipeRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/RecipeRepository.java
index d85894c2d48bb672c13cface578b18cdc3861d41..ace138c6f0374c10191072d2fee5d013e795e3dd 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/RecipeRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/RecipeRepository.java
@@ -11,7 +11,7 @@ import org.springframework.data.repository.query.Param;
  * This interface defines the methods for the recipe repository
  * 
  * @author Stian Lyng
- * @version 1.0
+ * @version 2.0
  */
 public interface RecipeRepository extends JpaRepository<Recipe, Long> {
 
@@ -22,6 +22,11 @@ public interface RecipeRepository extends JpaRepository<Recipe, Long> {
      */
     List<Recipe> findAllByName(String name);
 
+    /**
+     * Gets a weekly menu for a fridge
+     * @param fridgeId the id of the fridge
+     * @return a list of objects containing the name of the product and the id of the fridge
+     */
     @Query( value = """
         select p2.item_name, f.fridge_id  
         from fridge f 
@@ -29,7 +34,11 @@ public interface RecipeRepository extends JpaRepository<Recipe, Long> {
         inner join product p2 on p2.ean = fp.ean
         """, nativeQuery = true)
     List<Object[]> findWeeklyMenu(long fridgeId);
-    
+
+    /**
+     * Gets a list of recipes with their products
+     * @return a list of objects containing the recipe id, name, description, image url and product name
+     */
     @Query( value = """
         SELECT r.recipe_id, r.recipe_name, r.recipe_description, r.image_url, p.item_name
         FROM recipe r
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/ShoppingListRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/ShoppingListRepository.java
index b4dfbe259e81c36e2a8bfbd9170f9b7945d6d9d6..f0dd168099ad926833f0f6a438c60d98614a632b 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/ShoppingListRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/ShoppingListRepository.java
@@ -9,10 +9,8 @@ import org.springframework.data.jpa.repository.JpaRepository;
 /**
  * This interface defines the methods for the shopping list repository
  *
- * @author Stian Lyng
+ * @author Stian Lyng, Birk
  * @version 1.2
- * @since 19.04.2023
- *
  */
 public interface ShoppingListRepository extends JpaRepository<ShoppingList, Long> {
    
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/UserGroupAssoRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/UserGroupAssoRepository.java
index 07d3739543d9d39527e01eac24b404b0e3621d2e..9122768a25afb84e1692f9b5a86afb54279878d0 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/UserGroupAssoRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/UserGroupAssoRepository.java
@@ -10,6 +10,12 @@ import org.springframework.data.jpa.repository.Query;
 import java.util.List;
 import java.util.Optional;
 
+/**
+ * Repository interface for the UserGroupAsso association entity
+ *
+ * @author Pedro, Birk, Anders
+ * @version 1.3
+ */
 public interface UserGroupAssoRepository extends JpaRepository<UserGroupAsso, UserGroupId> {
 
 
@@ -70,7 +76,7 @@ public interface UserGroupAssoRepository extends JpaRepository<UserGroupAsso, Us
      * Finds the authority level of a user in a group
      * @param username the username of the user
      * @param groupId the id of the group
-     * @return
+     * @return the authority level of the user in the group
      */
     String findAuthorityByUser_UsernameAndGroup_GroupId(String username, long groupId);
 
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/WasteRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/WasteRepository.java
index 02b4266434c4dcddd63c9a7fe411a058c6a4a182..aaa41eb7248df4b21f53cbb0298226ecf7d64fa3 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/WasteRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/group/WasteRepository.java
@@ -9,6 +9,12 @@ import org.springframework.data.repository.query.Param;
 
 import java.util.Optional;
 
+/**
+ * Repository for waste
+ *
+ * @author Anders, Pedro
+ * @version 1.1
+ */
 public interface WasteRepository extends JpaRepository<Waste, Long> {
     Optional<List<Waste>> findByGroupId( Group groupId);
 
@@ -25,6 +31,10 @@ public interface WasteRepository extends JpaRepository<Waste, Long> {
     Optional<List<Waste>> findAllWasteOfOneCategoryFromGroup(@Param("groupId") long groupId,
                                                              @Param("categoryName") String categoryName);
 
+    /**
+     * Gets the last added waste item
+     * @return the id of the last added waste item
+     */
     @Query(value = "SELECT waste_id FROM wastes ORDER BY waste_id ASC",nativeQuery = true)
     long getLastWaste();
 
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/CategoryRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/CategoryRepository.java
index 6c7db2f19f4f3f155d02b4eefb92043d14c64d96..eb0f9642cf5d3e1239b88dfcfc8b0d9e1403816e 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/CategoryRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/CategoryRepository.java
@@ -3,5 +3,11 @@ package ntnu.idatt2016.v233.SmartMat.repository.product;
 import ntnu.idatt2016.v233.SmartMat.entity.product.Category;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+/**
+ * Repository for categories
+ *
+ * @author Birk
+ * @version 1.0
+ */
 public interface CategoryRepository extends JpaRepository<Category, String> {
 }
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/FridgeProductAssoRepo.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/FridgeProductAssoRepo.java
index 6cddba89479f9259f779d6c2604dc8d8c8debb28..f0e2d84a880d1aef1fd578eb1f5dbecf66e3b345 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/FridgeProductAssoRepo.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/FridgeProductAssoRepo.java
@@ -5,6 +5,17 @@ import org.springframework.data.jpa.repository.JpaRepository;
 
 import java.util.Optional;
 
+/**
+ * Repository for fridge product associations
+ *
+ * @author Birk, Pedro
+ * @version 1.1
+ */
 public interface FridgeProductAssoRepo extends JpaRepository<FridgeProductAsso, Long> {
+    /**
+     * Finds all fridge product associations by id
+     * @param id the id of the fridge product association
+     * @return an optional holding the fridge product association with the given id if it exists
+     */
     Optional<FridgeProductAsso> findAllById(long id);
 }
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/ProductRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/ProductRepository.java
index ea88f235df4a6238b1f31ee7cc6d649859ac5630..ccf04933af2ed2946209fb486c3b18fc532d3a52 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/ProductRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/product/ProductRepository.java
@@ -9,8 +9,7 @@ import org.springframework.data.jpa.repository.JpaRepository;
 /**
  * Repository for Products
  * @author Birk & Stian
- * @version 1.0
- * @since 19.04.2023
+ * @version 1.1
  */
 public interface ProductRepository extends JpaRepository<Product, Long> {
 
@@ -20,4 +19,5 @@ public interface ProductRepository extends JpaRepository<Product, Long> {
      * @param name the name of the group
      * @return an optional containing the product if it exists
      */
-    Optional<Product> getByName(String name);}
+    Optional<Product> getByName(String name);
+}
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/user/AchievementRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/user/AchievementRepository.java
index bcad340539d23afec160bcc4b0e9b2d7a429b24c..b702e3496b105cb93d8146b7d0dafb959944ea5d 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/user/AchievementRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/user/AchievementRepository.java
@@ -10,7 +10,6 @@ import java.util.Optional;
  *
  * @author Anders
  * @version 1.0
- * @since 19.04.2023
  */
 public interface AchievementRepository extends JpaRepository<Achievement, String> {
 
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/user/UserRepository.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/user/UserRepository.java
index 79aa716ab297b1116bfb4d217b3ce6df720a2fbf..20ef5b7ccbc83475a4ec5e4fd15cd503fa602626 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/user/UserRepository.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/repository/user/UserRepository.java
@@ -7,11 +7,8 @@ import java.util.Optional;
 
 /**
  * repo for user entity
- * uses mysql from server when ran
- * uses h2 in memory database when testing
  * @author birk
  * @version 1.1
- * @since 20.04.2023
  */
 public interface UserRepository extends JpaRepository<User, Long>{
 
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/AllergyService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/AllergyService.java
index 168345c8a53d7e79a2bf83643a6bd88cc7557401..20fa670787178e384f2964f0a7c3c68b0e27d6c0 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/AllergyService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/AllergyService.java
@@ -14,14 +14,10 @@ import ntnu.idatt2016.v233.SmartMat.repository.AllergyRepository;
 /**
  * Service for allergies
  * @author Stian Lyng
- * @version 1.0
  */
 @Service
 public class AllergyService {
-    
-    /**
-     * Repository for allergies
-     */
+
     @Autowired
     private AllergyRepository allergyRepository;
     
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/RecipeService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/RecipeService.java
index 4d894a1a1905a22fb8279885ca3c4d4d65ae953d..04a38cb5573a47d211777de2a5945a1861ebe391 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/RecipeService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/RecipeService.java
@@ -24,15 +24,12 @@ import org.springframework.stereotype.Service;
 /**
  * This class defines the methods for the recipe service
  * 
- * @author Stian Lyng
- * @version 1.0
+ * @author Stian Lyng, Birk
+ * @version 1.1
  */
 @Service
 public class RecipeService {
-    
-    /**
-     * The recipe repository
-     */
+
     @Autowired
     private RecipeRepository recipeRepository;
 
@@ -41,7 +38,7 @@ public class RecipeService {
 
     /**
      * Creates a new recipe service
-     * @param recipeRepository
+     * @param recipeRepository the recipe repository
      */
     public RecipeService (RecipeRepository recipeRepository) {
         this.recipeRepository = recipeRepository;
@@ -177,14 +174,11 @@ public class RecipeService {
      * @return A list of RecipeWithMatchCount objects representing the weekly menu
      */
     public List<RecipeWithMatchCount> getWeeklyMenu(Integer fridgeId) {
-        // Get the results from both repository methods
         List<Object[]> weeklyMenu = recipeRepository.findWeeklyMenu(fridgeId);
         List<Object[]> recipeProducts = recipeRepository.findRecipeProductsWithName();
     
-        // Prepare a map to store RecipeDetails with their match count
         Map<RecipeDetails, Integer> recipeMatchCountMap = new HashMap<>();
         
-        // Compare the item_name on both lists
         for (Object[] menuRow : weeklyMenu) {
             String menuRowItemName = ((String) menuRow[0]).toLowerCase();
             for (Object[] recipeProductRow : recipeProducts) {
@@ -206,18 +200,15 @@ public class RecipeService {
             }
         }
     
-        // Get a list of unique RecipeDetails from recipeProducts
         List<RecipeDetails> uniqueRecipeDetails = recipeProducts.stream()
             .map(row -> new RecipeDetails(((Integer) row[0]).intValue(), (String) row[1], (String) row[2], (String) row[3]))
             .distinct()
             .collect(Collectors.toList());
     
-        // Convert the map to a list of RecipeWithMatchCount
         List<RecipeWithMatchCount> commonRecipes = recipeMatchCountMap.entrySet().stream()
                 .map(entry -> new RecipeWithMatchCount(entry.getKey(), entry.getValue()))
                 .collect(Collectors.toList());
     
-        // Add additional recipes from uniqueRecipeDetails with a count of 0 if the list has less than 5 recipes
         List<RecipeWithMatchCount> zeroMatchRecipes = new ArrayList<>();
         for (RecipeDetails recipeDetails : uniqueRecipeDetails) {
             if (commonRecipes.size() < 5 && !recipeMatchCountMap.containsKey(recipeDetails)) {
@@ -225,10 +216,8 @@ public class RecipeService {
             }
         }
 
-    // Shuffle the zeroMatchRecipes list
     Collections.shuffle(zeroMatchRecipes);
 
-    // Combine the commonRecipes and zeroMatchRecipes lists
     for (RecipeWithMatchCount zeroMatchRecipe : zeroMatchRecipes) {
         if (commonRecipes.size() < 5) {
             commonRecipes.add(zeroMatchRecipe);
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/ShoppingListService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/ShoppingListService.java
index c56b1c27c84caf834059a9eccb485e35b354354e..2d5701c93820fd18f97dc73b27b9776ba580c8b1 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/ShoppingListService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/ShoppingListService.java
@@ -13,7 +13,7 @@ import ntnu.idatt2016.v233.SmartMat.repository.ShoppingListRepository;
 /**
  * Service for the shopping list
  * 
- * @author Stian Lyng
+ * @author Stian Lyng, Birk
  * @version 1.1
  */
 @Service
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/TokenService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/TokenService.java
index e2caee18c54df6a6d0b923726aa2d925fe17b512..6f83285bf463003a8b8901b1089ad2ce5519ac80 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/TokenService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/TokenService.java
@@ -15,7 +15,6 @@ import java.util.stream.Collectors;
  * This class is used to generate a JWT token.
  * @author Anders
  * @version 1.0
- * @since 22.03.2023
  */
 @Service
 public class TokenService {
@@ -24,7 +23,6 @@ public class TokenService {
 
     /**
      * Creates a new TokenService object.
-     * The encoder object is injected by Spring.
      *
      * @param encoder the JwtEncoder object to use
      */
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/WeeklyMenuService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/WeeklyMenuService.java
index 8965be1d7bf2c390a0420fffd4f13a01b9593c33..2fedb932097f72b492e003266d59c5788f42a3ed 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/WeeklyMenuService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/WeeklyMenuService.java
@@ -26,7 +26,7 @@ public class WeeklyMenuService {
      * Retrieves the top 5 recipes with products that have a match with items in the given fridge.
      * Returns a list of RecipeWithProductsDTO objects with recipe details and product information.
      *
-     * @param groupId the ID of the fridge to use for matching products
+     * @param fridgeId the ID of the fridge to use for matching products
      * @return a list of RecipeWithProductsDTO objects with recipe and product details
      */    
     public List<WeeklyMenuResponse> getWeeklyMenu(long fridgeId) {
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/FridgeService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/FridgeService.java
index 74295864fe25b35a3b7e1c2f5c32c0e17c7906a4..e7ae96f171e7aedb2624f7a5f8363f474e53c0ec 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/FridgeService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/FridgeService.java
@@ -28,7 +28,6 @@ import java.util.Optional;
  *
  * @author Anders Austlid & Birk
  * @version 2
- * @since 05.05.2023
  */
 @AllArgsConstructor
 @Service
@@ -92,7 +91,12 @@ public class FridgeService {
         return product;
 
     }
-    
+
+    /**
+     * Updates a product in the fridge of a group
+     * @param request the fridge product request
+     * @return the product that was added to the fridge
+     */
     public Optional<FridgeProductAsso> updateProductInFridge(FridgeProductRequest request) {
         Optional<FridgeProductAsso> fridgeProductAsso = fridgeProductAssoRepo.findById(request.fridgeProductId());
         if (fridgeProductAsso.isEmpty()) return Optional.empty();
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/GroupService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/GroupService.java
index e8b2b4d6797a8e2c219f4ae05cb245564bdb22fc..fb3e22f7e9958b0878bb09fe236237f896648002 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/GroupService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/GroupService.java
@@ -20,9 +20,8 @@ import java.util.Optional;
 /**
  * Service for groups
  *
- * @author Anders Austlid & Birk
- * @version 1.2
- * @since 26.04.2023
+ * @author Anders Austlid, Birk, Pedro
+ * @version 1.3
  */
 @AllArgsConstructor
 @Service
@@ -166,6 +165,11 @@ public class GroupService {
         return Optional.of(groupRepository.save(group));
     }
 
+    /**
+     * Gets a group by its link code
+     * @param linkCode the link code of the group
+     * @return an optional containing the group if it exists
+     */
     public Optional<Group> getGroupByLinkCode(String linkCode) {
         return groupRepository.findByLinkCode(linkCode);
     }
@@ -219,6 +223,12 @@ public class GroupService {
         return userGroupAssoRepository.findById(userGroupId);
     }
 
+    /**
+     * Gets the authority of a user group association
+     * @param username the username of the user
+     * @param groupId the id of the group
+     * @return the authority of the user group association
+     */
     public String getUserGroupAssoAuthority(String username, long groupId) {
         Optional<UserGroupAsso> userGroupAsso = getUserGroupAsso(username, groupId);
         return userGroupAsso.map(UserGroupAsso::getGroupAuthority).orElseThrow(() -> new IllegalArgumentException("User is not associated with group"));
@@ -236,8 +246,7 @@ public class GroupService {
 
     /**
      * removes user_group relatioon
-     * @param username the username of the user
-     * @param groupId the id of the group
+     * @param userGroup the user group association to remove
      * @return true if the user is the owner of the group, false otherwise
      */
     @Transactional
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/WasteService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/WasteService.java
index 3272f026f1921a22e53f2a727492346abe2a8713..20615c62e65ba9805211656fc5c924d57dca563c 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/WasteService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/group/WasteService.java
@@ -20,9 +20,8 @@ import java.util.Optional;
 
 /**
  * Service for waste
- * @author Pedro, Birk
+ * @author Anders, Pedro, Birk
  * @version 1.1
- * @since 04.05.2023
  */
 @Service
 @AllArgsConstructor
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/product/CategoryService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/product/CategoryService.java
index 3e6698264d242fa99c11a51627d15e5b7a024ba2..48765c3578f908b1474a74fe444b26e38dc460f8 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/product/CategoryService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/product/CategoryService.java
@@ -11,7 +11,6 @@ import java.util.Optional;
  * Service for Categories
  * @version 1.0
  * @Author Birk
- * @since 26.04.2020
  */
 @Service
 @AllArgsConstructor
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/product/ProductService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/product/ProductService.java
index 9e55d02b86903873e82b2b3ebabf2d5629c0cb78..1d526e4924d78f85f2ae9320b50990a74225355e 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/product/ProductService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/product/ProductService.java
@@ -13,7 +13,6 @@ import java.util.Optional;
  * uses both the ProductRepository and the ProductUtil
  * @author Birk
  * @version 1.1
- * @since 05.04.2023
  */
 @Service
 public class ProductService {
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/AchievementService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/AchievementService.java
index 83a781c445438cbb20148da93d8ee93519ce5762..7ef5c28bb2f00ca939d49679fdf75d6a54440c0e 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/AchievementService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/AchievementService.java
@@ -13,7 +13,6 @@ import java.util.Optional;
  *
  * @author Anders
  * @version 1.0
- * @since 19.04.2023
  */
 
 @Service
@@ -31,6 +30,10 @@ public class AchievementService {
         return achievementRepository.findByAchievementName(achievementName);
     }
 
+    /**
+     * Gets all achievements from the database
+     * @return a list of all achievements
+     */
     public List<Achievement> getAchievements(){
         return achievementRepository.findAll();
     }
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/JpaUserDetailsService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/JpaUserDetailsService.java
index d260ad8c01416997ec95480a761d2154a09a23ee..d256685ad22395e6ad97e1391a34f16f3c54cb0e 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/JpaUserDetailsService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/JpaUserDetailsService.java
@@ -10,7 +10,6 @@ import org.springframework.stereotype.Service;
  * JpaUserDetailsService is a class that implements the UserDetailsService interface.
  * @author Birk
  * @version 1.0
- * @since 05.04.2023
  */
 @Service
 @AllArgsConstructor
@@ -21,7 +20,7 @@ public class JpaUserDetailsService implements UserDetailsService {
      * gets user from username out of database
      * @param username username of user
      * @return user
-     * @throws UsernameNotFoundException
+     * @throws UsernameNotFoundException if user is not found
      */
     @Override
     public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/UserService.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/UserService.java
index 3c21d1971e071e2498c5432d7c982662ebd39799..7dc252ed2df343c200ede3430235873aae6bf2bf 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/UserService.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/service/user/UserService.java
@@ -21,9 +21,8 @@ import java.util.Optional;
 
 /**
  * UserService is a class that implements the UserDetailsService interface.
- * @author Birk
+ * @author Birk, Stian
  * @version 1.1
- * @since 20.04.2023
  */
 @Service
 @AllArgsConstructor
@@ -43,6 +42,10 @@ public class UserService {
     public Optional<User> getUserFromUsername(String username){
         return userRepository.findByUsername(username);
     }
+
+    /**
+     * Gets all users from the database
+     */
     public List<User> getUsers(){
         return userRepository.findAll();
     }
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/CategoryUtil.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/CategoryUtil.java
index 17b4771d51248c2e39d2e2f6733d83fb2c02f179..233458c218084c6b0b6a9d855c10d805cd9f5f3f 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/CategoryUtil.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/CategoryUtil.java
@@ -6,7 +6,6 @@ import java.util.*;
  * Utility class for category
  * @author Pedro Pablo Cardona
  * @version 1.0
- * @since 21.04.2023
  */
 public class CategoryUtil {
 
@@ -29,6 +28,11 @@ public class CategoryUtil {
             "grappa", "kirsebærbrannvin", "sherry", "sider", "mjød"
     );
 
+    /**
+     * Static method that returns a list of keywords for a given category.
+     * @param category The category to get keywords for.
+     * @return A list of keywords.
+     */
     private static List<String> getCategoryKeywords(String category) {
         return switch (category) {
             case "meat, fish and chicken" -> MEAT;
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/GroupUtil.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/GroupUtil.java
index 7e586b6161198f4cb5b80587d372d37181f1c28e..013af0e5896692cb2226ccc8c33aa1c2c0a8b28c 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/GroupUtil.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/GroupUtil.java
@@ -9,7 +9,6 @@ import java.util.UUID;
  *
  * @author Pedro Cardona
  * @version 1.0
- * @since 25.04.2023
  */
 public class GroupUtil {
 
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/ProductUtil.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/ProductUtil.java
index d83bf6cf2cc8533484f972294c7185f7b096fbd4..a9e9242ada9542d37bcffd1d66b3dd0078949387 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/ProductUtil.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/ProductUtil.java
@@ -11,12 +11,16 @@ import java.util.regex.Pattern;
 
 /**
  * Utility class for products
- * @author Birk
- * @version 1.0
- * @since 04.04.2023
+ * @author Birk, Pedro
+ * @version 1.1
  */
 public class ProductUtil {
 
+    /**
+     * Gets volume from a product
+     * @param product the product to get volume from
+     * @return an optional containing a list of the volume and unit if it exists
+     */
     public static Optional<List<String>> getVolumeFromProduct(Product product) {
         String total = product.getName() + " " + product.getDescription();
         double amount = parseAmount(total);
@@ -32,6 +36,11 @@ public class ProductUtil {
         return Optional.of(List.of(amount + "", unit));
     }
 
+    /**
+     * Parses unit from a string
+     * @param input the string to parse unit from
+     * @return the unit
+     */
     private static String parseUnit(String input) {
         Pattern pattern = Pattern.compile("(\\d+(\\.\\d+)?)\\s*(g|kg|l|ml|dl|cl|Kg|L|STK)\\b", Pattern.CASE_INSENSITIVE);
         Matcher matcher = pattern.matcher(input);
@@ -44,6 +53,11 @@ public class ProductUtil {
         return "STK";
     }
 
+    /**
+     * Parses amount from a string
+     * @param input the string to parse amount from
+     * @return the amount
+     */
     private static double parseAmount(String input) {
         Pattern pattern = Pattern.compile("(\\d+(\\.\\d+)?)\\s*(g|kg|l|ml|dl|cl|Kg|L|STK)\\b", Pattern.CASE_INSENSITIVE);
         Matcher matcher = pattern.matcher(input);
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/StatisticUtil.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/StatisticUtil.java
index 10fc25577b40d6320557ec62c6ebb2bb3171999a..9ef7a57c7de6cc2845fc8c44bb3dbb0fc9ecb64a 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/StatisticUtil.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/StatisticUtil.java
@@ -15,7 +15,6 @@ import java.util.List;
  * A utility class for calculating statistics related to waste and CO2 emissions.
  * @author Pedro Cardona
  * @version 1.0
- * @since 03.05.2023
  */
 public class StatisticUtil {
 
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/rsa/Jwks.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/rsa/Jwks.java
index 59f309bc244e4e66943e3f5e8b8904c1b0b941e1..31f3bc73c0582816e371e230ad88cf9ae38b2edf 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/rsa/Jwks.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/rsa/Jwks.java
@@ -9,15 +9,11 @@ import java.util.UUID;
 /**
  * Jwks is a utility class for generating RSA keys for JSON Web Key Set (JWKS) support.
  * It provides a method to generate an RSA key pair and create an RSAKey object.
- * @author Anders (young buck)
+ * @author Anders
  * @version 1.0
- * @since 04.04.2023
  */
 public class Jwks {
 
-    /**
-     * Private constructor to prevent instantiation of this utility class.
-     */
     private Jwks() {}
 
     /**
diff --git a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/rsa/KeyGeneratorUtils.java b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/rsa/KeyGeneratorUtils.java
index cd36005771fe2594fe470c536526c026d23b4b89..029f38e2eb397ce3396bbb1c3b2399f8628b5315 100644
--- a/src/main/java/ntnu/idatt2016/v233/SmartMat/util/rsa/KeyGeneratorUtils.java
+++ b/src/main/java/ntnu/idatt2016/v233/SmartMat/util/rsa/KeyGeneratorUtils.java
@@ -8,16 +8,12 @@ import java.security.KeyPairGenerator;
  * KeyGeneratorUtils is a utility class for generating key pairs, specifically RSA key pairs.
  * This class is marked as a Spring component to allow its use in the Spring framework.
  *
- * @author Anders (young buck)
+ * @author Anders
  * @version 1.0
- * @since 04.04.2023
  */
 @Component
 final class KeyGeneratorUtils {
 
-    /**
-     * Private constructor to prevent instantiation of this utility class.
-     */
     private KeyGeneratorUtils() {}
 
     /**