Dairy Products (Milk, Half & Half, Cream): Freezing these can lead to a grainy texture upon thawing, but they're still usable in cooking and baking.
Refrozen Meat and Seafood: It is found that Re-freezing previously thawed items can result in mushiness, affecting texture.
Delicate Fruits and Vegetables: Freezing may cause loss of texture, especially in high-water content produce like cucumbers and tomatoes.
Leafy Herbs: Whole herbs may suffer when frozen. Chop and mix with oil before freezing for better preservation.
Dairy (Sour Cream, Yogurt, Cream Cheese): Freezing can make these grainy, but they're still usable in recipes, avoiding dips and primary dairy recipes.
Mayonnaise: Freezing mayonnaise can cause it to separate and become unusable. Avoid freezing mayo and mayo-based foods.
Food you fried yourself: Freezing food that you personally fried can result in soggy texture as water and oil migrate to the surface.
Eggs in the shell: Freezing eggs in their shell can cause the shell to crack due to expanding water inside the egg.
Canned food: Freezing sealed cans of food is not recommended as water inside the can can expand, causing it to burst.