LocknLock HPL931D Review: The End of Mystery Fridge Boxes

By the Store Manager (店長評析)

Last week I found a bowl wrapped in cling film at the back of the fridge. I didn't remember what it was, and it didn't seem to remember either. Leftovers deserve a lid and a clear wall.

Key points first

This is LocknLock's classic HPL931D round container, 350 ml. Key points: clear PP body, four-side locking lid, tall round shape.

350 ml is small: fruit, sauces, side dishes, nuts. Not a full lunch.

A closer look

Retail data lists about 89 mm wide and 122 mm tall, so it stands in a fridge door shelf.

The four-side locking lid is easy to understand; just brush around the tabs when washing.

Sources say it's microwave, dishwasher and freezer safe, but remove or unlock the lid before microwaving. For heat limits, check the Shopee listing.

Everyday use

PP is light and shatter-resistant, and seeing what's inside beats fridge mysteries. Strong-coloured foods may stain it.

The Shopee listing bundles several sizes, so choose HPL931D 350 ml.

Shop owner's note: sticking to one series makes lids match and boxes stack.

Shop owner's notes

For cleaning, the locking lid usually has a silicone gasket—the key to the seal, and the easiest place for grime to hide. I suggest removing the gasket regularly to wash and dry it before refitting; follow the product instructions for how. If you've never taken it out, today might be a brave and good day.

A freezer tip: liquids and soups expand when frozen, so overfilling can make the lid very tight. It's safer to leave some headspace before freezing, which also makes thawing easier. That's not a LocknLock-only rule—it's your physics teacher running after-school tutoring in your freezer.

One last suggestion: stick a strip of masking tape on the lid with the contents and date. Ten seconds of effort tells you three days later which box to eat first, and stops your fridge from turning into an archaeology site. The container handles the seal; memory is down to the tape and you.

Before you buy

A fair word for the 350ml size: it's just right for one side dish, a portion of fruit or a pack of nuts. Too big wastes fridge space for a small amount; too small fits nothing. The narrow round shape slips easily into a fridge door or the side of a lunch bag—the kind of thing you never think about but use every day.

Good for: portioning fruit and sauces, small fridges, people who like a classic they can restock. Not ideal for: full lunches, lid-on microwavers, glass-only households.

Specs

| Item | Detail | |---|---| | 型號 | HPL931D | | 容量 | 350 ml | | 材質 | PP (polypropylene) | | 尺寸 | About 89 mm diameter × 122 mm high | | 蓋子 | Four-side locking lid | | 使用方式 | Microwave with lid removed or unlocked; dishwasher and freezer safe | | 耐熱 | Check the Shopee listing | | 售價 | Check the Shopee listing |

Pros

• 350 ml suits sauces, fruit and small sides
• Four-side locking lid
• PP: microwave (lid off), dishwasher and freezer use per sources
• Tall round shape fits fridge door shelves

Cons

• Too small for a main lunch
• Lid must be removed or unlocked to microwave
• Heat limits not confirmed on an official Taiwan page
• Multi-option listing: pick the 350 ml option

FAQ

Q: What capacity is HPL931D?

A: 350 ml; HPL931 is the 100 ml version.

Q: Is it microwave safe?

A: Yes per sources, with the lid removed or unlocked.

Q: Freezer and dishwasher?

A: Yes per sources; check the listing for temperature limits.

Q: How big is it?

A: About 89 mm diameter, 122 mm tall.

Where to buy

View on Shopee

Prices and specs: check the Shopee listing.

Sources

• LocknLock 產品型錄（container catalog）
• John A Shannon：HPL931D 350ml Round Container
• Stax Trade Centres：LocknLock Round Food Storage Container

Compiled by the store manager from official specs, listings and user feedback.

Some images are AI illustrations

Affiliate disclosure: this article contains Shopee affiliate links. UnboxRank may earn a commission at no extra cost to you.