How to Keep Your Lunch Box Cold

Intermediate 1 hour 9 steps 11577 views Rating: 4.1/5 Published: 2026-04-08

Select an insulated lunch bag that suits your needs.. Go with a bento box if you have many items that need separating.. Choose a cooler-style box if you're packing a larger lunch.

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Steps

1

Select an insulated lunch bag that suits your needs.

Step 1

Select an insulated lunch bag that suits your needs.

2

Go with a bento box if you have many items that need separating.

Step 2

Go with a bento box if you have many items that need separating.

3

Choose a cooler-style box if you're packing a larger lunch.

Step 3

Choose a cooler-style box if you're packing a larger lunch.

4

Pick a freezable bag for ease and convenience.

Step 4

Pick a freezable bag for ease and convenience.

5

Read the manufacturer's suggestions.

Step 5

Read the manufacturer's suggestions.

6

Freeze gel or ice packs overnight.

Step 6

Freeze gel or ice packs overnight.

7

Freeze water bottles or unopened juice boxes overnight.

Step 7

Freeze water bottles or unopened juice boxes overnight.

8

Place any stainless steel containers in the freezer, as well.

Step 8

Place any stainless steel containers in the freezer, as well.

9

Keep your cold foods at 40 °F (4 °C) or below.

Step 9

Keep your cold foods at 40 °F (4 °C) or below.

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