Glass or plastic food containers: which work best?

Vokshus bivokspapir, pustende alternativ i matboksen

Glass containers look appealing on the shelf: solid, easy to inspect and resistant to lingering food smells. But they are heavier and often cost more. Are they worth it? Here is a practical comparison with plastic, plus alternatives for foods that do not need a rigid box.

Quick answer: Glass resists staining and is convenient for reheating when the container is rated for it. Plastic is lighter and often cheaper. A mix can work well: suitable glass at home and for reheating, steel for transport, and reusable wraps for sandwiches or dry snacks.

A side-by-side comparison

Glass containerPlastic container
Microwave and oven useOnly if rated for the intended appliance; check the lid separatelyMicrowave only if labelled suitable; follow its limits
Smells and stainsGenerally resistantMay retain food smells or tomato stains
Scratches and wearResists everyday scratching but can chip or breakCan become scratched or harder to clean
Weight in a bagHeavierLighter
Useful lifePotentially long if undamagedDepends on quality, use and care
DishwasherCheck the container and lid instructionsOnly if suitable; follow rack and temperature guidance

Two drawbacks of glass

Weight. A glass box can weigh as much as its contents, which matters when cycling to work with several portions. Lids. Many glass containers have plastic lids. If materials matter to you, inspect every component: alternatives include glass, wood or bamboo lids with suitable seals. Glass can also break, so handle it carefully. See lunch boxes without plastic.

The fair case for plastic

Plastic is light, inexpensive and tolerates everyday knocks. Sound food containers can still be useful for freezer storage or dry foods when rated for those uses, so there is no need to discard an undamaged box simply to replace it. Retire damaged containers according to the maker's guidance and choose your next material for the job it needs to do.

Some of lunch does not need a box

Sandwiches, suitable fruit, a piece of firm cheese or a plain cinnamon bun can travel in a beeswax wrap. The sheet moulds around the food and folds away on the journey home. Keep perishable ingredients chilled regardless of wrapping. The weekly routine combining boxes and wraps is in a week of packed lunches with less plastic.

Frequently asked questions

Are glass containers worth the cost?
They can be good value when their weight and fragility suit your routine. Glass resists stains and can last a long time if undamaged, but there is no fixed replacement interval that applies to all glass or plastic boxes.
Can a glass container go in the freezer?
Only if it is rated for freezing. Leave expansion space for liquids and follow the maker's thawing instructions. Avoid sudden temperature changes.
What can replace a plastic lid?
A suitable glass, wood or bamboo lid may work, with any seal checked separately. For a bowl in the fridge, a beeswax wrap is another option: see covering bowls without cling film.

For food that stays out of the oven

Vokshus beeswax wraps are cotton wraps coated with beeswax and tree resin. See the product page for available sets, sizes and your local price.

See the beeswax wrap sets →
  • Reusable for around 12 months
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  • Wash in cold water
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  • Refresh the wax coating when needed