Updated March 2026.
Kirkland Signature silver tequila is not Patrón in a warehouse dress. Patrón Silver is 40% ABV / 80 proof from Hacienda Patrón, NOM 1492 (Bacardi). Current Kirkland tequila bottles are widely reported at NOM 1173 — Corporativo Destilería Santa Lucía (VinePair 2026; leftover CRT rows have also listed 1142). Both typical US silvers print 40%. A 1.5-ounce pour is one NIAAA standard drink either way. The split is the NOM, not extra proof.
Older Kirkland lots used other NOMs (1472 / 1142 in trade). Read the four digits in the cart. Related: who makes Kirkland tequila, Patrón, Casamigos vs Patrón.
Same ethanol, different NOM
| Kirkland Silver (current reporting) | Patrón Silver | |
|---|---|---|
| Typical US ABV | 40% — confirm neck | 40% (Bacardi nutrition / brand FAQ) |
| NOM | 1173 Santa Lucía (trade/CRT row). Older 1142 / 1472 | 1492 Hacienda Patrón |
| Owner story | Costco contractor — Costco does not distill | Bacardi (2018) |
| 1.5 oz drinks | 1.00 if 40% | 1.00 |
| Watch | 100% agave vs mixto is on the label | Patrón 100 is 50% (Apr 2026 PR) |
A 1.75 L 40% Kirkland handle is about 39.5 drinks; a 750 mL Patrón about 17. Four pours are four drinks. NIAAA binge pattern is a health line, not a target. We will not invent a 2026 warehouse-vs-bee-bottle price. CRT / Pour math: tequila drinks.
Sources
- Bacardi Limited Patrón nutrition: Silver 40%. Brand FAQ: core bottles 40% / 80.
- Kirkland NOM 1173: VinePair 2026; CRT leftover 1142 row. — read the bottle. Not a Costco producer statement.
- Patrón 100 = 50% (Bacardi 15 Apr 2026 PR). NIAAA (December 2025). No 2026 MSRP.
- 27 CFR 5.148