Oster BLSTAV-WRS Bottle
- Bottle
- 1.3 pounds
- 1
- Plastic
The specs point to a plastic blending bottle for adults rather than an infant bottle, so shoppers looking for baby feeding gear should look elsewhere.
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How it ranks among the 276 bottles we track
4.6★ across 365 Amazon ratings, Bayesian-smoothed toward the category average.
365 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 276 bottles we track - how the scorecard works · full bottles data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Despite sitting under the baby bottles category, the Oster BLSTAV-WRS is listed with an adult age range and a plastic build, which points to a blending bottle or personal blending jar rather than an infant feeding bottle. Oster is best known for blenders and kitchen appliances, not baby gear.
The category label here does not match the product data. An adult age range and a capacity given in pounds rather than fluid ounces both point away from infant feeding equipment and toward a to-go blending cup, the kind of accessory Oster sells for its blender lineup.
- Plastic material
- Adult age range per spec sheet
- 1.3 lb capacity rating
- Single pack count
Who it's for
This listing reads as a plastic blending bottle or jar, likely meant to add to or replace a cup on an Oster blender. It does not read as a baby product despite where it is filed.
Strengths and trade-offs
Drawn from this product's published specifications.
- Plastic construction typical of blending jars
- Category label conflicts with adult age range
- No stated blender base compatibility
- Capacity given by weight, not fluid ounces
Performance notes
The listing does not name which Oster blender base the bottle threads onto, so confirm base or blade compatibility separately before ordering. Capacity is given as 1.3 pounds rather than a fluid measurement, which fits a blending jar spec sheet more than an infant bottle listing.
Specifications
| Brand | Oster |
|---|---|
| Capacity | 1.3 pounds |
| Pack Count | 1 |
| Material | Plastic |
| Age Range | Adult |
How it compares
This product against the closest alternatives we track in bottles.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Oster BLSTAV-WRS BottleThis product | 4.6 / 5 | 365 | 3.8 / 5 |
| Lansinoh 60044677203700 BottleLansinoh | 4.8 / 5 | 52,400 | 4.7 / 5 |
| Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby BottleDr | 4.8 / 5 | 52,000 | 4.7 / 5 |
| Philips SCY903/04 BottlePhilips | 4.8 / 5 | 25,000 | 4.7 / 5 |
| Medela 87095 BottleMedela | 4.8 / 5 | 15,100 | 4.7 / 5 |
Similar bottles from other brands
Questions about the Oster bottles
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is the Oster BLSTAV-WRS actually a baby bottle?
The category says bottles, but the age range is listed as Adult, pointing to a blending cup or jar rather than an infant feeding bottle.
What is the BLSTAV-WRS made of?
Plastic, according to the listed material.
Does it fit a specific Oster blender?
The data provided does not name a compatible blender base, so confirm fit before buying.