Summer is grilling season, and if you’re still buying ground beef one pound at a time at the regular grocery store, you’re leaving real money on the table. Costco’s Kirkland Signature 10 lb ground beef tubes are one of the smartest bulk buys at the warehouse — and with three fat ratios to choose from, the trick is knowing which one actually fits how you cook.
What You’re Getting
Kirkland Signature Ground Beef comes in 10 lb vacuum-sealed tubes available in three blends: 90/10 (extra lean), 80/20 (the all-purpose classic), and 73/27 (high fat). You’ll find them at Costco Business Centers and select Costco warehouse locations. The value proposition is simple: regular grocery stores can run $7 or more per pound for ground beef — buying in bulk at Costco cuts that meaningfully.
Which Fat Ratio Should You Buy?
This is the real question, and it comes down to what you’re cooking.
90/10 — Extra Lean Best for tacos, pasta sauces, and anyone meal prepping with macros in mind. Less shrinkage in the pan, less grease to drain. If you’re portioning into one-pound bags for weeknight dinners, this is your workhorse blend.
80/20 — The Classic The sweet spot for most home cooks. Enough fat to keep burgers juicy and meatballs tender without being greasy. Most recipes that call for “ground beef” assume this ratio. If you’re only buying one blend, make it this one.
73/27 — High Fat Where this earns its keep is smash burgers and slow-cooked chili where you’ll drain the fat anyway. Serious backyard grillers love this for the extra flavor. If July 4th cookouts are already on your calendar, the 73/27 deserves a close look.
Who This Is Best For
- Meal preppers — one tube, portioned into one-pound freezer bags, covers a family for weeks
- Summer grillers — between cookouts, neighborhood get-togethers, and weekend burgers, 10 lbs disappears faster than you’d think
- Anyone feeding a crowd — church potlucks, team dinners, or a big family reunion spread all become a lot easier
This deal hits especially well for Southern families who grill regularly through the summer. If you’re firing up the pit most weekends from now through Labor Day, stocking the freezer now makes sense.
A Few Caveats
Not every Costco location carries all three blends — Business Centers tend to have the broadest selection, so it’s worth a quick call before making the trip specifically for one ratio. You’ll also want either the freezer space or a plan to use the beef quickly once the tube is opened. A vacuum sealer makes portioning and freezing simple, and it pays for itself fast when you’re buying at this volume. [AFFILIATE:vacuum_sealer]
Costco membership is required to shop in-store. If you’re not already a member, summer is a solid time to join — between grilling staples, bulk pantry items, and back-to-school supplies coming up, the membership fee starts looking pretty reasonable. [AFFILIATE:costco_membership]
The Bottom Line
For most families, the 80/20 is the safest all-around buy. But if smash burgers are your thing this summer, grab the 73/27 and don’t look back. Either way, buying a 10 lb tube at Costco beats paying grocery store prices one pound at a time — and your freezer can be stocked for the whole season in one trip.