Storage and food safety
Reading labels and storing dry goods: checks before and after opening
Guidance on reading product information, retaining labels and clarifying storage conditions. No single after-opening shelf life applies to all dry goods.
Read the specific product's instructions
Before buying, check the product name, ingredients, weight, production date, expiry date and storage instructions on the packaging. Read any supplementary label too. This is a practical buyer's checklist, not a complete list of legal labelling obligations. Ask the supplier if information is unclear, missing or difficult to understand rather than guessing.
Distinguish unopened from opened products
Storage requirements can differ before and after opening. The FDA recommends checking label instructions; some foods need refrigeration even when they are not meat or dairy. Do not assume that everything called “dry goods” or “seasonings” can be stored beside the stove. Follow manufacturer instructions and ask when uncertain.
Keep information for cross-checking
If transferring products to working containers, keep the original label or a record linked to the correct batch. Recording the opening date helps track handling but does not create a new expiry date. Avoid mixing old and new batches and losing traceability. This is SACHUN's organisational guidance; specific storage duration and conditions remain product-dependent.
Keep clean and prevent cross-contamination
WHO includes cleanliness and separation of raw and cooked foods among basic food-safety principles. When handling ingredients, pay attention to hands, utensils and contact surfaces. Organise kitchen tasks so dry goods and ready-to-use ingredients do not contact raw food or dirty utensils.
Do not establish safety by sensory checks alone
The FDA notes that food may cause illness even without obvious signs of spoilage. Do not taste a suspect product to determine whether it is safe. Stop using it and ask the supplier if packaging is abnormal or storage history is uncertain. This article does not prescribe a common number of storage days for opened dried mushrooms, roasted sesame or seasonings; follow each product's label.
References
FDA: Are You Storing Food Safely? · WHO: Five keys to safer food manual
Source checked on 07/10/2026. General recommendations do not replace instructions for individual products.
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