Commercial bleaches with "clinging" or "thick" formulas (like some bathroom bleaches) are generally not for food-contact surfaces. Food - Bleach - The Home Depot
"Food grade" bleach isn't actually a separate product category like food-grade oils. Instead, it refers to standard, that has specific EPA registrations and label instructions for sanitizing food-contact surfaces. Where to Buy Approved Bleach where to buy food grade bleach
Must be clearly visible on the label.
When shopping, ensure the bottle meets these specific criteria to be safe for kitchen use: it refers to standard