About Us
A Few Words About Us
Welcome to American Mass Hal
— Where Community, Culture, and Craft Come
Together.
At American Mass Hall, we pride ourselves on delivering an authentic grilling experience by cooking our meats over an open flame to lock in natural juices and smoky goodness. We use only fresh, high-quality ingredients—carefully selected meats, herbs, and vegetables—with no shortcuts. Every dish is thoughtfully marinated, seasoned, and grilled to perfection by our experienced chefs. Whether you’re dining in or taking out, our warm and welcoming atmosphere ensures every visit is memorable. From families and foodies to casual diners, there’s something special for everyone at Jass Grill Haus.
Founded on the idea of bringing people together, AMH is more than just a venue — it’s a
hub for community, creativity, and conversation. Our space is built to host everything
from concerts and open mic nights to craft fairs, pop-ups, and private events. We’re
proud to support local artists, brewers, and makers while offering a welcoming space for
all.
What We Stand For:
- Community First : Everyone is welcome. This is a place for connection.
- Local Love : We feature and support local talent, food, and drink.
- Live Culture : From music to art to storytelling, culture lives here.
Where American indulgence meets Asian flair
Created by Chef Heman Tan, American Mass Hall delivers upscale dining with theatrical tableside service and bold, comforting flavors in Singapore’s CBD.
Created by Chef Heman Tan, American Mass Hall delivers upscale dining with theatrical tableside service and bold, comforting flavors in Singapore’s CBD.
Chef Heman Tan
Professional chef ꞏ Ceramist ꞏ Author ꞏ Triathlete
Fondly known as the Ironman Chef, Heman Tan is a man of many talents. In addition to having more than 39 years of culinary experience as a celebrated professional chef, he is also an accomplished ceramist, as well as a competitive triathlete and Facebook.com marathoner. In addition, he is a prolific author, having published seven books thus far. Such diverse abilities underscore his determination and creativity, which serve him well, especially in the ultra-competitive F&B industry.
As the General Manager and Chef, Co-founder For Jas Prestige Group. Chef Heman has come a long way from his early days working as an R&D chef at Prima Foods. He once owned and helmed two restaurants, Iron Supper Club and Moonbow, and brought valuable expertise to his roles as Group Executive Chef of JP Pepperdine Group and Chief Culinary Officer of the Soup Restaurant Group . He has also gained extensive experience in the catering industry, overseeing preparations for as many as a few thousand meals a day when he was with ISS Catering (Singapore) and JR Foodstuff industries.
With extensive knowledge of American, European and Asian cuisine, Chef Heman is renowned for crafting unique menus that integrate his ‘East meets West’ knowledge. His background in ceramics, as the last student of the late Dr Ng Eng Teng, has earned him distinction as the only celebrity chef who serves his cuisine on ceramic wares he personally shapes and fires. An award-winning ceramist, his works have been showcased at the Singapore Sculpture Square and The Arts House.
Constantly looking for ways to push his limits, Chef Heman participates actively in culinary challenges, leading teams as the team captain and team manager to represent Singapore in international culinary competitions. He has also been featured in various culinary programs and demonstrations organized by big industry players like Nestle Professional, California Raisins, Singapore Food Festival, 50 Plus Healthy Living, Asian Masters, and the Health Promotion Board. Being a competitive sportsman, Chef Heman understands the need for healthy eating and has obtained a Certificate of Nutrition and Diet (Healthy Eating Principles) under the Fitness Australia Accredited Program. He put this unique knowledge to good use when he planned low GI meals for La-vie performers (RWS), and healthy meals for international players of The Singapore Sports School and The Singapore Health Promotion Board. He was also involved in meal preparation for the international athletes at the 3rd ASEAN School Games.
Chef Heman is a champion for CSR work and he reaches out to the needy through his expertise in culinary and ceramic arts. Project IronRiceBowl is one such initiative that he has launched to arm the less privileged community with skills that they can learn to help themselves.
In addition, Chef Heman is a former Executive Committee member of the Singapore Chef’s Association where he headed the Association’s Social Activities & Sports Committee and held roles such as Memberships & Ex-Treasurer in the Association. He is also a member of the International Association of Gastronomy; Chaîne des Rôtisseurs, Sabre d’Or Singapore and a Certified Judge of the World Association of Chefs’ Societies (WACS).
He has started a Facebook Page and launched a video series called “The Iron Man Chef” to offer not just culinary and health tips but also motivational lessons.
Achievements and Awards
- Honorary Doctorate in Social Work by Kutztown Business University of Pennsylvania & IBF University
- WGA Western Cuisine Chef of the Year 2022
- Singapore Brand ambassador for Brandt 2022
- NTUC May Day Awards ( Labour Day) – Partnership Award
- President’s Challenge Social Enterprise Awards (PCSEA) 2019 – Finalists for Social Enterprise Champion of the year (Individuals)
- FHA National Gourmet Team Challenge 2014- Silver medal
- Pattaya Culinary Challenge 2013 – National Team Gold Medal
- International Culinary Cup 2010 (Thailand) – Champion team
- Penang Culinary Challenge – Champion team
- Ceramic Summer School, Australia and Singapore 1996,1997 & 1998 – Best Thrower (20kg) and Teapot Challenge Champion
Books
- Balancing Health and Flavour – Plant Based Cuisine 《创造美味 吃出健康 – 植物性美食篇》(Bilingual – English and Chinese), published in 2024
- Cooking Under Soft Pressure (English), published in 2022
- 《餐桌上的大小事》(Chinese), published in 2020
- Ceramic & Culinary Arts: Creations of Iron Man Chef Heman Tan 《陶艺•厨艺：铁人名厨陈喜明心灵创 作》 (Bilingual – English and Chinese), published in 2019
- 《铁 人 名 厨 的 生 命 指 南 ：寻 找 成 功 的 食 谱 陈喜明的生命指南》(Chinese), published in 2018
- Iron Man Chef, Tough. Love. (English), published in 2017
- Guide to Life (English), published in 2017
Media
- Love On The Plate, Channel 8
- As I hold Your Hand, Channel 8
- The Four Celebrity Chefs, Channel 8
- First XI (season 2), Channel 5
- Interviewed in an article “It Changes My Life” (The Sunday Times, xxx)
- Awarded Gold on SG 50 Most Inspired & Touching life story (LianHe Zaobao, xxx)
Community Programmes
- Project IronRiceBowl
- Dining behind Bar
- Cooking class by Rose to the Occasion
- Chef with Hearts
Renowned Chefs
Meet The Taste Experts
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Careers
Be a Part of Our Restaurant
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Arthur Lee
Founder / Head Chef
James Lee
Co-Founder / Chef
Suzanne Grey
Lead Chef
Max Broody
Breakfast Chef