Where are the organic buckwheat hulls grown?

That info is not on the label - you would have to ask the Zen Chi company, whose name is on the label.

When you use the placement hulls, do you add them to your old ones or throw out old ones and use new ones?

I have done both in the past. I had a pillow from Sobekowa (sp) that had flattened somewhat with age. I added new ones to it after a year or more if use. I recently ordered a new one and from the beginning it seemed too flat. So I ordered these replacement hulls to add more support. After a few months I added about another 1 1/2 cups. To really answer your question, if the hulls were really old, I’d toss them and begin w all fresh ones.

Please clarfty: How many needed to fill a regular bed pillow standard size? Someone said 5 or 6 which seems excessive.

To give you an idea of the "size," the buckwheat hulls are in a sealed plastic bag that fits snugly into a box that is 11" x 11" x 3.5." Not sure if that helps you to gauge how many you'd need, but I don't think that 5-6 is probably excessive. Sort of depends on how well-filled you want your pillow to be. If you order too many boxes, it won't go to waste because you'll eventually need to replenish your pillow with more hulls as they get more polished and packed.

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Zen Chi そば枕の交換船体：100％オーガニック蕎麦船体2 Lbのリフィルバッグ

Zen Chi そば枕の交換船体：100％オーガニック蕎麦船体2 Lbのリフィルバッグ

Product ID: 763227791

Details

Brand
Zen Chi
Special Feature
クール洗濯可能。
Color
褐色
Size
XL サイズ
Fill Material
Buckwheat

🌿100% Organic Buckwheat Hulls

♻️Refillable & Customizable Fill

❄️Natural Cooling Air Circulation

Description

🌙 Sleep Zen, Wake Refreshed – The Organic Pillow Revolution

TAILORED SUPPORT - Adjust the fill to perfectly contour your head, neck, and spine for personalized alignment.
STAY COOL ALL NIGHT - Enhanced air circulation keeps you naturally cool, reducing heat buildup for deeper sleep.
PURE ORGANIC COMFORT - Experience chemical-free, 100% organic buckwheat hulls that cradle your head and neck naturally.
STRESS PAIN RELIEF - Naturally alleviates muscle tension, headaches, and shoulder stiffness for rejuvenating rest.
SUSTAINABLE EASY CARE - Refillable design with machine-washable covers ensures long-lasting freshness and eco-conscious use.

The Zen Chi 100% Organic Buckwheat Hull Refill is a premium, chemical-free pillow insert designed to promote natural cooling and ergonomic support. Crafted from sustainably sourced organic buckwheat hulls, it adapts to your body’s contours to relieve tension and improve sleep quality. Its refillable and washable design ensures lasting comfort and hygiene, making it a must-have for health-conscious professionals seeking restorative rest.

Specifications

Color	褐色
Size	XL サイズ
Manufacturer	Zen Chi
Item Weight	907 g
Care Instructions	洗濯機洗い
Is Mildew Resistant	ケミカルフリー
Fill Material	Buckwheat
Product Dimensions	10.16 x 7.62 x 10.16 cm; 907.18 g
Package Weight	1.09 Kilograms
Batteries Required	No
Batteries Included	No

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