The Verdict

FENRIR 204 Pack Regular Mouth Canning Lids: The Bulk Buy That Actually Seals?

Let’s be honest: buying canning lids is a gamble. You either pay a premium for Ball or Kerr, or you roll the dice on a generic 200-pack from an unknown brand, praying you don’t lose a summer’s worth of tomatoes to a faulty seal. The FENRIR 204 Pack sits squarely in that second category, but after digging through 215 ratings and the construction details, this isn’t a blind bet—it’s a calculated one.

What You’re Actually Getting

This is a box of 204 regular mouth (70mm) silver lids, designed to fit standard Mason jars. There are no rings (bands) included—these are strictly the flat, one-use lids. As shown in the product image, they come stacked in a sealed, vacuum-packed bag to protect the sealing compound during shipping.

The key spec here is the food-grade BPA-free coating and the red sealing gasket around the inner rim. FENRIR markets these as compatible with both water bath and pressure canning. At a price point that undercuts name brands by roughly 25–30% per unit, the math immediately works for a prolific canner.

Performance: The Seal Rate Is the Whole Story

A canning lid only has one job: seal. If it doesn’t snap down with that satisfying “pop,” everything else is irrelevant. The overwhelming consensus in customer feedback is that these lids perform admirably in this regard. One verified buyer noted, “I did 3 batches of salsa and 2 of green beans—all 85 jars sealed on the first try.” That tracks with the 4.3-star average.

However, there is a nuance. Multiple reviewers mentioned that the red compound is slightly thinner than what you’d find on a Ball lid. This means rim preparation matters more. If you leave a speck of tomato seed or grease on the rim, the thinner gasket is less forgiving and more likely to fail to seal. You can’t be lazy with these.

In terms of build quality, the metal feels sturdy. They don’t warp or buckle when you crank the band down tight, which is a common failure point on ultra-cheap overseas lids.

Where They Fall Short

Let’s talk about the tradeoffs.

First, storage durability. Several reviewers noted that if you leave these in a damp basement or humid garage, the exterior can develop light surface rust spots. This won’t ruin the seal if the rim is clean, but it looks ugly on the shelf. Keep them in a dry, climate-controlled area.

Second, they are single-use. FENRIR does not recommend reusing these for canning (which is standard for all lids, but some generics are thicker and can be reused for dry storage). Don’t buy these expecting to use them twice.

Third, the thin compound issue mentioned earlier. If you are a novice canner who struggles with headspace and rim wiping, you might see a higher failure rate than with premium brands. This is a “skill issue” rather than a product defect, but it’s worth noting.

Who Should Buy This?

• The Bulk Preserver: If you put up 100+ jars of pickles, jam, or broth every season, the cost savings here are substantial. You’ll blow through 204 lids quickly, and the $ saved covers your produce costs.
• The Community Canner: If you make gifts for holidays or sell at farmers’ markets, the uniform silver finish looks professional.
• The Budget-Conscious Beginner: If you are just starting and expect to make mistakes, these are cheap enough to practice with without crying over wasted lids.

Skip it if you are a “can once a year” person who only does 10 jars of jam. You won’t use 204 lids before they oxidize. Stick to a 12-pack of Ball.

FAQ: Real Shopper Questions

Q: Do these fit all regular mouth Mason jars? A: Yes, they fit standard 70mm regular mouth jars (Ball, Kerr, and generic store brands). They do not fit wide-mouth jars.

Q: Can I use these in a pressure canner? A: Yes. The manufacturer rates them for both water bath and pressure canning. Just ensure you don’t overtighten the bands before processing.

Q: Why did my lid buckle? A: This almost always happens because you tightened the ring too hard before processing. Finger-tight is the rule. The thin compound on these requires a gentle touch—don’t wrench them down.

The Verdict

Rating: 4.2/5

Buy it if: You have a serious canning habit and want to cut costs without sacrificing first-attempt seal rates. This is a high-value pack for high-volume work.

Skip it if: You are a casual canner or you struggle with meticulous rim cleaning. You’re better off paying a few extra cents per lid for the thicker compound of a premium brand to cover your margin of error.

These aren’t the “best” lids on the market, but they are arguably the best value for the serious home preserver. Just keep them dry and wipe your rims.