Shelf Life and Stability Testing for Herbal Tea Blends

Shelf life decides how long your tea stays tasty, colourful and safe. It also decides whether your stock survives a long journey to another country.

SHELF LIFE FACTORS

What Shortens Shelf Life

Several environmental factors can affect the quality, colour, aroma and stability of herbal tea blends. Moisture, light, oxygen and heat are among the main factors brands should consider when planning storage and packaging.

• - Moisture:The biggest enemy of dried herbs. It leads to mould and flat flavour.
• - Light:It fades flower colours, such as hibiscus and blue pea.
• - Oxygen:It dulls aroma over time.
• - Heat:It speeds up all of the above.

INGREDIENT QUALITY

Why the Blend Matters

Different ingredients age differently. Delicate flowers lose colour and aroma faster than robust roots and seeds. A good formulation takes this into account when choosing ingredients and cut sizes.

• - Different herbs and botanicals have different stability characteristics.
• - Delicate flowers can lose colour over time.
• - Floral ingredients may lose their aroma faster.
• - Robust roots and seeds can behave differently during storage.
• - Ingredient selection and cut sizes should be considered during formulation.

PACKAGING PROTECTION

Why Packaging Matters

Packaging is the barrier. A sealed pouch or tin protects better than an open container. Pyramid tea bags are often placed in an outer pack or carton to protect them from air and moisture. The right choice depends on the blend and how long it must last.

• - Packaging acts as a protective barrier.
• - Sealed pouches and tins help protect tea better than open containers.
• - Pyramid tea bags can be placed inside an outer pack or carton.
• - Outer packaging helps protect against air and moisture.
• - Choose packaging according to the blend and expected shelf life.

QUALITY TESTING

Testing

Shelf life is confirmed through testing and monitoring, not guessed. Brands should ask a manufacturer about moisture checks, microbial testing and how the best-before date is set. We supply batch records and a Certificate of Analysis with shipments.

• - Ask about moisture checks.
• - Ask about microbial testing.
• - Understand how the best-before date is determined.
• - Check batch records.
• - Request the Certificate of Analysis (CoA) supplied with shipments.
• - Use testing and monitoring rather than guessing shelf life.

FRESHNESS

Made to Order Helps

We make batches to order rather than to stock, so your tea reaches you fresh instead of sitting in a warehouse.

• - Production batches are made to order.
• - Products do not need to sit in a warehouse as ready stock.
• - Made-to-order production helps deliver fresh tea to customers.
• - Freshness is an important consideration for product quality.

STORAGE TIPS

Tips for Brands

Proper storage and stock management help protect herbal tea quality. Brands should pay attention to storage conditions, sealed cartons and batch traceability.

• - Store stock in a cool, dry, dark place.
• - Keep outer cartons sealed until dispatch.
• - Rotate stock so older batches sell first.
• - Print a clear batch number so any issue can be traced.

EXPORT PLANNING

Planning an Export Order

If your tea will spend weeks in transit, tell us in advance so we can recommend suitable packaging. Share your destination and expected storage time, and our team will advise.

• - Inform the manufacturer if your order will spend weeks in transit.
• - Share your export destination.
• - Explain the expected storage time.
• - Discuss suitable packaging for your shipment.
• - Ask the Anantah Foods team for packaging recommendations.